Floor-surfacing machine.



PATENTED MAR. 24, 1908.

M. L. SCHLUETER. FLOOR SURFAOING MACHINE.

APPLICATION FILED HAR 2l, 1907.

2 SHEETS-SHEET l.

PATENTED MAR. 24, 1908. M. L. SOHLUETER. FLOOR SURPAGING MACHINE.

APPLICATION FILED MAR-21, 1907.

2 SHEETS-SHEET 2.

MAX L. SCBLUETER, Ol" CHICAGO, ILLINOIS.

ELooR-SUBEAGING MACHINE.

no. Seesen Specification of Letters Patent.

Patented March 24, 1908.

Application filed March 21, 1907. Serial No. 363,531.

To all whom 'it muy concern:

Be it known that l, MAX L. SonLUETEE, s citizen oi' the VUnited States, residing in Chicago, in the county ot (look und Stute of illinois, have invented n new and usei'ul lin piovement in i*loorourlocing lvlnclunes, ol Whieh the followingis e speciiieetion.

This invention relates to i'loor surfacing machines, and its object hes been the produc tion of un eilicient machine having en elec tric or other motor for operating its surfacing drum, und yet ine-de small enough end light enough to permit its being; propelled by nienuel power, t is so constructiul that its drinn is normallyv lifted roni the lloor by spring` power, but mey be easily lowered into acting position by raising.;` the propelling handle so os to tip the inochine on its supporting;r vrl'ieels, und, es s result oi this feo ture, the drum need never eut hollows inthe lloor beeziuse it nutoniotically ruised so it een not do so the inoulent the operator lets go oi the handle. in other words, the drum, although it continuously operated, is rendered idle :ind prevented l'ronl doingi luuni to the lloor Whenever the inschine stops in its inovenlent over the lloor.

The machine also embodies other features of importance, und its nature is fully disclosed below sind also in the accompanying drawing, in which lutter Figure .l is e. sideelex'zition. Fig. i2 :i plain, omitting; the dust rolleiiug bugs, and Fig. 3 is o rear view ol' the invention. Fig'. 4' is n. section. on line jl--l ol' ille'. 1. Fig'. 5 is :t vertical section ol' one ol' the drum. bearings,

`-vund Fig. (l is :i section ol one of the spring;

ying upward into pfu'tielly hollow hearings oosters.

yln said drawing l() represents the l'ren'io ol' the machine, supported by the wheels il and their axle. l2 and by the casters 13 and their springs lli. The propelling; .handle 15 is ottsehed et any convenient point, preferably to the table .i6 carrying the controllingv switch '17 ond the graduated contacts 18 ol" the storting devices ol the electric motor ll). This table is sinoported in any suitable weg," from the 'ironie l0. lt will be noted that the easter Wheels nre forward oi the center ol' the machine und the Wheels l l bueh of it1 and thet the machine muy be e-(isily lipped on said Wheels by applying power to the handle. The caster Wheels have tlieirstems ext( andthe' sternsnre threaded end provided Witllnuts 2l whereby the blocks 22 et the lower end ol the bearings are supported. 0n the blocks 22, ball bearings may be formed for the collars lll rigid on the pivots, such collars sustaining' the Weight. The springs lll are confined in the bearings between the solid centers 24.- ond the collars 23, end the pivots ore loose in seid centers end also in the blocks 22. The bearings 2() :ire tlneeded exteriorly and engage threads .in a bese 25 secured. to the ironie 1l). By turningthe bearings 20 the action. of the springs llemay be regulated and the machine raised or low ered, :is will be understood.

i9 is theeleetric rnotor end El the ehn-it' driven by it. 0n this shnl't is` a pulley 32, through which :ind the belt 323 und pulley 34 the fen for drm/ving` the dust from the surl'seing drui'n is actuated. Suid shaft also carries :i sprocket wheel 35 and through such spree-liet wheel, the sprocket chain 36 und the sprocket Wheel 37 drives the surfacing drum 258. This druni may be ol the ordinary construction and covered with sandpaper or its equivalent, and the pipe 3l) is adapted to carry away the dust given oil' from it sind carry it vlo the fan by which it is forced into the dust bog 40. A hood 41, hinged ut 12, is placed over and covers the top and front of thix drum, sind prevents the escape oi the dust.

At its ends the druni isiprovided with bearings supported in the side plates 4:3. These plates are bolted to side plates lll formed on tho moin ironie, and are capable ol ,being` removed Wl'ienever it is desired to ,luke out the drinn. The bolt openings l5 in them are also elongated horizontally, so that the plates iney be adjusted whenever necessary to lake up sleek in the chain 36. The druin bearings in these )lotes are erich' provided with springs 4-(5 nud 47 one shove und the other below the drinn 'ournsh so tlntt the drinn adapted to yiel whenever it passes over en unevenness or obstruction on the iioor, and also to enter depressions in il, and the depth of its action on the ioor and the i'roedoin of' its 'vertical movements may be regulated as desired by the screw 4.8 'bearing upon the upper spring and adapted to compress both springs. The bearing is also adopted to roch as will be seen from Fig, 5 when one end ol the drurn descends into a. depression or rides over va projection, which does not extend under the other end. The standards 3U ire adopted to support the electric Wires by which the motor operated; Two are provided as a nnitter or convenience, on'e on either side of themachine. .y j

. In operating/ the machine, the electric current is first turned on, and the drum got under Way. The attendant then raises the handle suiiiciently to carry the drum down upon the floor, and moves thevinachine either forward 0r back as necessity requires. When he Wishes to stop surfacing, he either rethe druni,.a pair of ,supportinpr wheels, and a propelling handle, the drum and thehandle eing located upon opposite sides of`the supporting,r Wheels so that the drum may he depressed hy ylifting on they handle, the portion of the machine in which the drum 'is mounted being provided with means` wherebyit may be automatically lifted when pressure upon the handle is Withdrawn.

2. The surfacing machine havingr a surfacing drum at one end normally supported above its acting position by springs, centrally located supporting Wheels upon the axle of which the machine may hey tipped to carry the drum into or out of action, a motor for said drum located over said wheels, and a handle at the other end of the machine adapted hoth to propel the machine and to depress the drum into action.

3. The surfacing n'iachine provided with a surfacing drum, a tipping frame in one end 'of which the drum is mounted on `yielding hearings, a pushing handle at the other end of the frame` and yielding easter supports under the drum end of the frame, \\'hereh the vibrations imparted to the drum are ahsorhed.

4. The surfacing machine having carrying wheels upon which it mayl he tipped, a sur-v facing` drum at one end, a motor driving said drum. located over said wheels'hut inde}' endent thereof a' handle at the other end hy raising whielrthe drum is lowered into action, and springs hy which the drum lifting on the handle. The surfacing machine the `surfacing drum whereof is provided with spring-supj ported hearings allowing either end ofthe, drum to drop or rise without the tlie,r,'a1id thus conform to the inequalities of the lloor `and screws 48 hearing,` upon and lref rulating the action of the springs.

MAX L. SCHLUETER,

Witnesses:

H. M.. MUNDAY, EDW. S. EvARTs.

kept out of action when the operator is not 

